Physical Properties:
Shiny, soft, smooth to cut,
Chemical Properties:
Highly reactive, change color when in contact to air, reactive to water.
Example:
Li. Lithium is used in batteries because it has a high every density so lithium batteries are rechargeable and more stable.
Chemical Properties:
Non-metals have relatively high ionization energy, electron affinity, and electronegativity.
Physical Properties:
low melting point, low boiling point, low density, brittle when solid.
example:
Ne. Neon is used in neon lights because the light contains a small amount of neon gas and then Electricity is added to strip electrons away from neon atoms, ionizing them and creating the glow of neon lights.
Physical Properties:
shiny, somewhat reactive, silvery white, heavy.
Chemical properties:
good conductors of electricity, react from exposure to air, react with water.
Example:
Mg. Magnesium is used for stuff like car seats, cameras and other stuff because it is a very light metal compared to the rest of the Alkaline Earth Metals.
Chemical Properties:
react with oxygen, reacts with water, reacts with acid.
Physical Properties:
lustrous appearance, and conducts electricity and heat relatively well, malleable, can be pulled into wires.
Example
Ti. Titanium is used for air crafts and spacecrafts. Ti is used for these things because of its low density and ability do withstand extreme temperature changes.
Physical Properties:
colourless, odorless, low boiling points.
Chemical Properties:
very low chemical reaction, highly un-reactive except for when they are put under extremely cold conditions.
Example:
He. Helium is used in balloons to make them float. The He makes the balloons float because He is lighter than the O and N found in the earth's atmosphere
Example:
Si -Silicon is used in computer chips and solar cells. it is used in thees things because it has superior electronic properties, optical properties, thermal properties and mechanical as well as environmental properties.
Physical Properties:
They are brittle, only fair conductors of electricity, some have low melting points, some have high melting points.
Chemical Properties:
brittle, have properties of metals and non metals.
Physical Properties:
low melting points, low boiling points, malleable.
Example:
I- Iodine is used as a disinfectant. I is used as a disinfectant because it prevents and or kills infections.
Chemical properties:
Halogens react with metals, produce a wide range of salts, including calcium fluoride, sodium chloride, silver bromide and potassium iodide.
physical properties:
conduct heat and electrisity, high boiling points, maluable, high densitys, hard.
Chemical Properties:
A strong tendency to form complexes, Forming compounds with variable oxidation states
Example:
Co. Cobalt is used in lithium batteries. Co is used because it increases battery life and energy density, stabilizes the battery, and prevents corrosion.